Invention Grant
- Patent Title: Corona ignition device having asymmetric firing tip
- Patent Title (中): 具有不对称点火尖端的电晕点火装置
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Application No.: US13324069Application Date: 2011-12-13
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Publication No.: US09103313B2Publication Date: 2015-08-11
- Inventor: John Antony Burrows , James D. Lykowski
- Applicant: John Antony Burrows , James D. Lykowski
- Applicant Address: US MI Southfield
- Assignee: Federal-Mogul Ignition Company
- Current Assignee: Federal-Mogul Ignition Company
- Current Assignee Address: US MI Southfield
- Agency: Dickinson Wright, PLLC
- Agent Robert L. Stearns
- Main IPC: F02P9/00
- IPC: F02P9/00 ; F02P23/04 ; H01T13/46 ; H01T13/50 ; H01T21/02
Abstract:
A corona ignition system for providing a corona discharge (24) includes an igniter (20) having an electrode (26) with an asymmetrical firing tip (28) relative to an electrode center axis (ae). The firing tip (28) includes a first surface area (A1) facing the fuel injector (42) which is greater than a second surface area (A2) facing a cylinder block (32). The first surface area (A1) presents a projection (60) having a sharp edge, and the second surface area (A2) presents a round outward surface (62). Accordingly, a radio frequency electric field emitted from the first surface area (A1) provides a robust corona discharge (24) in a flammable area at an outside edge (30) of the fuel spray. No electric field is emitted from the second surface area (A2), and no power arcing occurs between the second surface area (A2) and the cylinder block (32).
Public/Granted literature
- US20120199088A1 CORONA IGNITION DEVICE HAVING ASYMMETRIC FIRING TIP Public/Granted day:2012-08-09
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